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OpenStudy (anonymous):
Express as a simplified polynomial: (4a + 5)2
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OpenStudy (anonymous):
you mean like...8a-40? 8(a-5)?
OpenStudy (tad1):
(4a + 5)(4a + 5) 16a^2 + 40a + 25
OpenStudy (anonymous):
is the 2 a square?
OpenStudy (anonymous):
it is (4a)^2 + 2(4a)(5) + (5)^2 16a^2 + 40a + 25
OpenStudy (tad1):
It's a special product of the form (a+b)^2 = a^2 +2ab +b^2
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OpenStudy (tad1):
I have to log off now and do some studying. I'll be back in a couple of hours.
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